Texas Instruments LaunchPad AM243 Series User Manual page 48

Hardware Description
A BoosterPack that is connected to site #1 will be powered by the AM243x. A BoosterPack that is connected to
site #2 can either be powered by the AM243x or have it's power sourced from the Boosterpack itself depending
on whether or not the 0Ω resistors (R161, R163) are mounted. The resistors are mounted by default as shown in
Figure 4-3, the AM243x will provide the VSYS_3V3 and VSYS_5V0 source voltage for the BoosterPack. When
left unpopulated, the BoosterPack will be required to source its own power.
Sourcing power to the LaunchPad from the BoosterPack should not be attempted.
Table 4-1. BoosterPack Power Sourcing for BoosterPack Site #2
Function
Power to BoosterPack sourced from LaunchPad
Power to BoosterPack sourced from the BoosterPack
48 AM243x LaunchPad™ Development Kit User's Guide
Note
Mount R161 and R163
(Default)
✔
Figure 4-3. Site #2 BoosterPack Header
Copyright © 2022 Texas Instruments Incorporated
Unmount R161 and R163
✔
SPRUJ12B – AUGUST 2021 – REVISED OCTOBER 2022
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